Thermal serving tray



FIG. 1 is a front elevational view of the thermal serving tray showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a cross- sectional view thereof taken vertically through the midplane at line 7--7 of FIG. 2. 

The ornamental design for a thermal serving tray, as shown and described. 